"The Patagonia M10 Storm Jacket is the shell for ski touring approaches, technical climbing days, and snowboard objectives where the pack needs to stay light and the weather protection cannot be optional. The ECONYL recycled nylon face and fully sealed seams work together to keep the construction minimal and the coverage complete, so the jacket earns its place in the pack without negotiation. The integrated RECCO reflector adds rescue-system compatibility without adding bulk. What Our Gearhead® Experts Are Saying:""When the approach steepens and the pack straps are cinched tight, the slim cut stays out of the way without binding at the shoulders. It packs into its own chest pocket, so it rides at the top of the bag until the weather turns."""